[Q] Help connecting with QPST - Epic 4G Q&A, Help & Troubleshooting

Hi All,
I can't seem to get QPST to work with my Epic 4g (trying to change the PRL). I've followed this guide: http://forum.xda-developers.com/showthread.php?t=898628
The issue is (as far as I can tell), the computer isn't using the correct drivers. I can't get the phone to show up as a com port regardless of what UART/USB settings I try, charging/USB tethering, or USB debugging enabled/disabled.
I've attached two pics from device manager, the first is using USB tethering, the other putting it in Charging mode. I've even tried reinstalling the Samsung USB drivers and manually updating them with the phone connected -- but no luck (it says the best drivers are already installed).
Any suggestions?

Found the fix: need to plug in the phone with PDA/USB selected and switch to MODEM/USB after. Otherwise my computer doesn't even detect a USB connection.

Related

[Q] ADB is not seeing my Samsung Epic

Ok so I want to root my epic, there's just one problem... ADB doesn't see my phone. It is listed in my device manager and is showing as working. but when i try and list adb devices it shows nothing. My phone is in USB Debugging mode. I have the Samsung drivers installed. I just cannot figure out why this is not working for me. I have looked everywhere and have been unable to find anything that has helped my problem at all. Tried to upload a pic showing my device manager but i guess i cant yet because i haven't made enough posts yet. Device manager show my device in three different sections one under USB Controllers as SAMSUNG USB Composite Device, One under Ports (COM & LPT) as SAMSUNG Mobile Modem Diagnostic Serial Port (WDM) (COM4) , and one under Modems as SAMSUNG Mobile Modem.Thanks for any ideas.
jarmour05 said:
Ok so I want to root my epic, there's just one problem... ADB doesn't see my phone. It is listed in my device manager and is showing as working. but when i try and list adb devices it shows nothing. My phone is in USB Debugging mode. I have the Samsung drivers installed. I just cannot figure out why this is not working for me. I have looked everywhere and have been unable to find anything that has helped my problem at all. Tried to upload a pic showing my device manager but i guess i cant yet because i haven't made enough posts yet. Device manager show my device in three different sections one under USB Controllers as SAMSUNG USB Composite Device, One under Ports (COM & LPT) as SAMSUNG Mobile Modem Diagnostic Serial Port (WDM) (COM4) , and one under Modems as SAMSUNG Mobile Modem.Thanks for any ideas.
Click to expand...
Click to collapse
Try different USB port, switch data cable and also uninstall - reboot- reinstall driver - reboot - reboot phone - try again.
If you are using a laptop sometimes it's flaky. Reboot often and remember that you may have to kill that exe process... Think it was adb.exe a few times and just screw with it until you trick it to work. Trial and error
Sent from my SPH-D700 using XDA App
Ok so I wated a video on rooting samsung epic and one thing that I noticed was that when he hooked up his epic it showed up in the device manager under ADB Devices and mine shows up in 3 other locations. Is this where my problem is... am I just having issues with my drivers?
Sent from my SPH-D700 using XDA App
Turn off any security and uninstall the samsung drivers. reinstall drivers and watch and make sure your phone is detected by your pc. Now run your rooting app.
Sent from my SPH-D700 using XDA App
Hello. I am having the same problem as described above. The Epic is installing as a modem (on my Win7 PC) instead of an Android Composite ADB Interface. I cannot connect at all to the Epic (cannot connect via adb with debugging turned on and it I try and mount the Epic no folders show up on the PC). I have reinstalled the drivers and checked all of my serial ports. Also, I have a Samsung Captivate that works fine using the same system. Incidentally my wife took the Phone into Sprint to get the latest android version and they gave her a hard time cause it was rooted. I think they may have done something to the phone cause I pulled pictures off her phone to the PC last week. Help please!!
OK, so I got the Eipc to work. I still do not know the root cause but here are the steps I took to "fix it":
1) Unplugged USB cable and disabled usb debugging
2) Plugged in phone to USB and selected Mass storage. The drivers were installed correctly
3) Unplugged phone and turned on USB debugging)
4) Plugged in phone and the proper devices were detected but windows hung on installation of a "strange" unkown ADB device
5) Unplugged phone and plugged back into the USB port and all was working!
Hope this helps.

[Q] Completely different connection issue (I think)

Let me start by saying I have read dozens of threads on connection issues from the original galaxy to the s2 and none of them have worked. Here is my problem. When I plug in my phone I get a MTP connected dialogue box but kies will not recognize my phone and odin won't recognize my phone in download mode. My computer's device manager doesn't even show drivers installed or any yellow triangles at all. As a matter of a fact, my computer does NOTHING when I plug in my phone. No installing drivers dialogue box or anything. I have tried manually mounting usb storage mode to no avail. I can not transfer files, root my phone or do anything. I'm running stock EK02. Also, with usb debugging box checked my phone just charges with no pc connection at all. with usb debugging unchecked it will show the mtp connected but my computer doesn't show anything
Here is what I've tried:
Installing and reinstalling kies about a dozen times.
uninstalling and reinstalling samsund drivers
rebooting my phone
tried different computers
I EVEN BOUGHT A NEW COMPUTER (brand new nothing installed)
Then I bought a new usb cord
restarted my computer several times
checked then unchecked usb debugging just in case
Please Help, I'm completely stumped......
I can get on multiple chats for anyone interested (gtalk, facebook, irc, whatever) or take responses here. thank you in advance.
--------------------------
UPDATE: so it was the USB cord the while time. Apparently you should really only use the USB cord that came with the phone, which I lost and had to borrow from someone else.

[Q] Connect as hard drive / Charge only

I have had this phone for only two days now. My previous phone was an EVO. I got my Epic 4G Touch via a trade and there is one thing that I cant figure out... and feel quite silly asking the question.
When I plug the phone into my PC via USB, I do not get an option or prompt to choose whether to connect as a hard drive / charge only / or tether my internet connection like I did on my EVO. It seems that it only allows me to connect in charge only mode. I have been unable to find an option to choose to connect as a hard drive in the settings menu.
Any help with this solution will be greatly appreciated.
Thanks
Robert
Ok, enabling the USB debugging and then unplugging and plugging in the USB fired up those settings, but it did not find drivers for:
CDC Serial or SAMSUNG_Android... I am going to search the forum for that answer.
Settings>Wireless and Networks>USB Utilities. That's how you get to USB mode. But yes debugging mode also works. But once you plug your phone in the mtp mode should connect. You can also access media on PC that way and ur sd card is still accessible thru phone, unless you're actively syncing something then you get the sync screen.
Sent from my SPH-D710 using XDA App
for my phone as soon as i plug it in i get a notification at the top and i pull down the status bar and i can enable usb mass storage from their
Thanks for the reply folks. I had me EVO so long that I forgot about enabling debugging mode. I did that and I finally got the drop down menu to enable me to use the phone as a hard drive.
My issue now is that I cannot seem to get two drivers to install correctly. I read through many posts, both here and ones I found via google, that suggested that I install Kais from Samsung's website to fix the driver issue. I did that, and applied all of the updates to the program that were available, and I am still getting the error saying that those drivers did not install correctly. I can browse the SD card now that Kais Air is installed, but I am still having the driver issue in device manager.
I am not sure where these drivers can be obtained...
OnDutyTactical said:
Thanks for the reply folks. I had me EVO so long that I forgot about enabling debugging mode. I did that and I finally got the drop down menu to enable me to use the phone as a hard drive.
My issue now is that I cannot seem to get two drivers to install correctly. I read through many posts, both here and ones I found via google, that suggested that I install Kais from Samsung's website to fix the driver issue. I did that, and applied all of the updates to the program that were available, and I am still getting the error saying that those drivers did not install correctly. I can browse the SD card now that Kais Air is installed, but I am still having the driver issue in device manager.
I am not sure where these drivers can be obtained...
Click to expand...
Click to collapse
Other than Kies, your pc should install drivers upon connecting phone. I've had this happen before. I uninstalled the drivers I found via google, restarted my pc, reconnected my device and it immediately began downloading proper drivers. I was good to go from then on.
You may wanna try, once device is connected to pc to
-go to start menu
-computer, and see if your device is there

[Q] Galaxy S II USB connection to computer not working

When I connect my phone to my computer via USB, the first time it installs drivers and makes a noise. The drivers it installs are "Samsung Mobile Modem Diagnostic Serial Port (WDM) (COM6)", "Samsung Mobile Modem", and "Samsung USB Composite Device."
However, the device does not show up in Windows Explorer, and if I turn USB debugging on, it does not show up as a device I can debug on.
The device is running Android version 4.0.4 with model number SPH-D710.
I have tried installing the Samsung USB Driver for Mobile Phones, but that does not do anything differently when I plug in the phone.
I have tried with both of my cables and it works with neither one.
I have tried dialing *#7284# and changing USB to modem then back to pda and restarting the device, but that makes no difference as well.
The phone used to be a Credo Mobile phone but last year it was flashed to Page Plus. I'm not sure if this could have made the USB connection to the computer stop working as a USB storage device.
The phone shows up in devices and printers as a modem and USB hub.
Any ideas on how I can get it to work with my computer (Windows 7)? I mostly need it to work for USB debugging which is currently impossible.
Wrong forum, belongs here. I've asked mods to move your thread, sit tight until they do.
Found solution
I found a solution:
I had to change it to AP mode by dialing ##8778#. It was set to CP mode, probably from when I had it flashed. Yay!
Found it in this thread: http://forum.xda-developers.com/showthread.php?t=1956802
Thanks for helping me find the right forum.

USB charges but no data

Hi, my phone stopped being able to get a USB data connection. The port is physically intact and does not wiggle. I've tried two different Macs and one PC, different USB-A to -C cables (all verified by Benson Leung). Also toggled USB debug, MTP and PTP modes from Developer Options, rebooted phone and computer. When I plug the phone in, it only goes to Charging mode. Android File Transfer doesn't see it and 'adb devices' comes back empty. There is no notification offering me to select connection type. Did I miss anything or is it time to send it in? Thanks, Tony
What OS are you running on your Windows - checking your Device Manager under Control Panels - are all the Google / N5X drivers installed and working correctly before this ? Try uninstalling, reboot PC and re-install them - and, use different USB port to connect the cable (what kind of connections are you using ??)
Can you run ADB ?
Thanks I'm primarily using a Mac (10.10.5) but the PC was running Vista. It was a borrowed PC so I didn't install the drivers. I don't think it's a driver issue though since nothing shows up in device manager and the phone doesn't offer to switch out of charge-only mode. Also the same Mac worked previously.

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